Kevin Rudd’s decision to spend hundreds of millions of dollars on technology to capture and store carbon has failed to deliver.

They’ve conferenced in empire-style Parisian ballrooms and dined in Kyoto on food cooked by a genuine Iron Chef. But deeply disgruntled former staffers believe Australia’s $300 million Global Carbon Capture and Storage Institute has not achieved very much.

In 2008 the then prime minister Kevin Rudd decided a fledgling technology called carbon capture and storage was the key to two of his government’s big aims: joining a successful international fight to reduce global warming and continuing to be the world’s largest exporter of coal.

SEATTLE — The heaviest polar ice in more than a decade could postpone the start of offshore oil drilling in the Arctic Ocean until the beginning of August, a delay of up to two weeks, Shell Alaska officials said.

Unveiling a newly refurbished ice-class rig that is poised to begin drilling two exploratory wells this summer in the Beaufort Sea, Shell executives said Friday that the unusually robust sea ice would further narrow what already is a tight window for operations. The company’s $4-billion program is designed to measure the extent of what could be the United States’ most important new inventory of oil and gas.